Automatic roller-bearing for window-sashes.



J. P. CUNNINGHAM.

AUTOMATIC ROLLER BEARING FOR WINDOW SIASHES.

APPLICATION FILED MAY 19, 1914.

Patented Feb. 2, 1915.

2 SHEET$-SHEET 1.

THE NORRIS PETERS 60.. PHOTOJJTHQ, WASHINGTON, D. C.

J. P. CUNNINGHAM.

AUTOMATIC ROLLER BEARING FOR WINDOW SASHES.

APPLICATION FILED MAY 19, 1914 Patented Feb. 2, 1915.

2 SHEETS$HBET 2.

aka/mugs.

THE NORRIS PETERSflQ, PHOTO-LlTHD WASHINGYUN, D. (L

sr rarer JAMES P. CUNNINGHAM, OF CINCINNATI, OHIO, ASSIGNOR TO WALTER R. GRISSEL, F CEDAR RAPIDS, IOWA.

AUTOMATIC ROLLER-BEARING FOB WINDOW -SASI-IES.

1,127,196. Specification of Letters Patent Patented Feb. 2, 1915. Application filed May 19, 1914. Serial No. 839,609.

To all-whom it may concern: these rollers for each side bar of each sash Be it known that 1, JAMES P. CUNNING- frame. HAM, citizen of the United States, residing Each roller 37 is mounted in a yoke desigat Cincinnati, in the county of Hamilton nated generally 41. This yoke is composed and State of ()hio, have invented certain of sheet metal bent to provide the spaced new and useful Improvements in Automatic side walls 42, these side walls being con- Roller-Bearings for YVindow-Sashes, of nected for a portion of the length of the (so which the following is a specification. yoke by the web 18, leaving an open space My invention relates to windows, and parbetween the side walls and behind said web, ticularly to sash supporting means therefor. as at 44. Each roller 37 is channeled upon One object of my invention is the proits periphery and is mounted upon an arbor vision in connection with window sashes of 45. mounted in the side walls 42. hearing rollers disposed on the side edges of Passing through the side walls of the the sashes and means preferably connected yoke and in the space 14 is a pivot pin 46 to the sash weights for exerting a constant and surrounding this pivot pin and rotaoutward pressure on the rollers to automatitably mounted thereon between the side cally force the rollers against the inner face walls 12 is a sleeve 17. This pivot pin 46 exof the window casing, thus preventing the tends through the side walls of the bar 33. window sashesfromrattling,providingafirm There are two yokes disposed reversely to support for the window sashes in their travel each other srrthat the rollers are disposed at and causing sufficient engagement between the adjacent ends of the yoke. These rollers the window sashes and the casing to prevent may be disposed in any desired relation to the windows being drawn too easily upeach other. Disposed at the lower end of ward by the weights. each hollow side bar 33 of the sash frame Other objects will appear in the course of is a transverse pin 48 to which is clamped the following description. one end of a tension member 49. As illusli/ly invention is illustrated in the accomtrated. this tension member is in the form of panying drawings, wherein a steel strip relatively narrow in width Figure 1 is a front view of a window conwhich passes up over the front or outside structed in accordance with my invention. portion of the roller 47 ofthelowest voke and Fig. 2 is a front elevation of the sash, a y then up back of the web 43 of said lowest portion of the jamb and the tensioning deyoke.- The tension strip is carried upward vice mounted therein. Fig. 3 is an edge view behind the web of the upper yoke and upof the sash with the tensioning device ward and outward in front of the sleeve of mounted therein. Fig. i is a perspective the uppermost pivot pin 46 then upward beview of one of the rollers and the yoke suptween pins 50 carrying upon them sleeves 51 porting it. and the upper end of this flexible tape or Referring to these drawings it will be tension member 49, as illustrated in Fig. 1 seen that the frame of my improved window is connected to the sash tape 32 by means comprises the oppositely disposed hollow of a clip 52 of any suitable construction. metallic jambs 2, the hollow metallic lintel These sash tapes 32 in turn are connected to 3, and the sill 3 The inner wall of the the sash-weights 82. The pivot pins 46, 48 jamb is so formed as to provide a middle and the pins 50 each consist of sections of parting strip and sash channels on each side steel tubing attached at each end to receive of the parting strip, each channel being fiat headed tap screws with a shoulder to formed with a longitudinally extending prevent the displacement of the pins and guiding corrugation or rail 17 which is preferably the sides 42 of the yokes are braced by a corrugated strip of metal 19. braced at their lower ends by means of a The upper and lower sashes are desigtransverse bracing web 45%. nated A and B and both are formed in the It will be seen from Fig. 2 that the tensame manner. Each sash includes the latersion member 49 is deflected out of a straight ally disposed hollow sheet metal sash bars line by passing behind the free ends of the 33 housing rollers 37. There are two of yokes 41 and then being carried forward above and below the yokes over the pivot pins thereof. As a consequence when strain is placed upon this tension member it will force the tension member to straighten out which will force the free ends of the yokes and therefore force the rollers 37 outward and into contact with the tracks. Thus, when the counter weights are detached from the sash frame there is no outward force exerted upon the rollers 37 but when the weights are attach d this outwardly acting force exerted upon these rollers will be in proportion to the size of the counter-weight.

It will be seen that with a construction as heretofore described that the window sashes are positively guided in their movements and held from any rattling by the engagement of the rollers 37 with the tracks 17. A suflicient pressure is exerted at all times upon these rollers to hold the window sash in its proper position and the outward force exerted upon the rollers causes them to press against the tracks with sufficient force to resist the action of the counter-weight to some extent but permit the easy movement of the window sashes. l

Having thus described the invention what claimed as new is y y 1. In a window, a jamb and a sash, a bearing member mounted on the sash for outward movement against the jamb, a sash Weight, and means connected to the sash weight for forcing said bearing member outward against the jamb.

2. In a window, a jamb, a sash, a bearing roller, a roller supporting member pivotally connected to the sash to permit the roller to move outward against the jamb, a sash weight, and means operatively connected to the sash weight for forcing said roller outward.

3. In a window, a jamb, a sash, a bearing roller carried by the sash, a yoke pivoted at one end to the sash and at its other supporting said bearing roller, a weight, a flexible tension element distorted line by said roller supporting member connected at one end to the sash and at its other end operatively connected to the weight, the tension on said element acting to force it to a straight line and thereby forcing said roller outward.

4. In a window, a jamb, a window sash coacting with the jamb and having a vertically disposed recess in its side edge, upper and lower supporting members each disposed in said recess and pivoted to the walls thereof, each at one end, bearing rollers carried by said supporting members. a counter weight in the jamb, and a flexible tension element forming connecting means between the sash and counterweight and distorted from a straight line by said roller supporting memcopies or this patent may be obtained for fivecents each, by addressing the from a straight b'ers, whereby the said weight shall act to forcethe tension element into a straight line, thereby forcing said rollers outward.

5. In a window, .a jamb, a, sash 'coacting therewith and having a recess in its side edge extending longitudinally thereof, upper and lower roller supporting members, the adjacent ends of said members each supporting a bearing roller, pivot pins passing through the outer ends of said roller supporting members, a counter-weight disposed in the j amb, and a flexible tape forming connecting means between the sash and counter-weight and passing in front of both of said pivot pins and behind the free ends of said supporting members and being thereby deflected from a straight line. i I

6. In a window, a jamb, a sash coacting therewith, a sash counter-weight disposed in the jamb, a roller supporting member disposed in a recess in the side edge of the sash,

said roller supporting member comprising a yoke having spaced sides, and a cross bar at one end connecting said sides, a roller supported between said sides adjacent said cross bar, a pivot pin passing through the other ends of the sides, and supported in the sash, and a flexibletape forming connecting means between the sash and counter-weight and passing behind the cross bar on the free end of the yoke and passing between said side members and over the outer face of the pivot pin.

7. In a window, a jamb having a longitu dinally extending track formed upon its face, a sash coacting with the jamb and longitudinally recessed upon its side edge, a counter-weight, upper and lowerpivot pins passing through said recess, sleeves surrounding said pivot pins, upper and lower yokes disposed in said recess, each of said yokes comprising a cross bar and spaced sides and mounted upon a pivot pin passing through said sides, a roller for each yoke mounted adjacent the cross bar thereof and upon the free end of the voke, said roller being grooved to engage the track, a flexible tape forming connecting means between the sash and counter-weight and passing upward over the pivot pin of the lowest yoke then behind the cross bar thereof, upward along the recess and behind the crossbar of the up per yoke, then forward in front of the pivot pin of the upper yoke, above the upper yoke between which the tape passes In testimony whereof I affix my signature in presence of two witnesses.

JAMES P. CUNNINGHAM- [L. 8.] Witnesses:

FRANK J. Donenn, JAMES R. MCCAR'INEY.

Washington, D. G.

and guiding pins 

